Where to watch UFC 306: O'Malley vs. Dvalishvili live stream, fight card details, start times and more

Two championship fights will dominate the UFC's debut at The Sphere in Las Vegas. Who will walk away with gold at UFC 306?

Here's how to watch UFC 306, including streaming options and TV channel to watch the prelims and main event on pay-per-view.

WATCH: UFC 306 tonight on ESPN+ PPV

How to watch the prelims at UFC 306

• channel: ESPN
• Live stream: Fubo

The preliminary round begins at 8 p.m. ET and will air on ESPN and will also be streamed via Fubo, which currently has a free trial available.

Irene Aldana faces Norma Dumont in a battle for bantamweight supremacy. Mexican Aldana holds the record for the second-most strikes (1,105) in UFC women's bantamweight history. Brazilian Dumont has won four fights in a row. The 10th-ranked bantamweight defeated former world champion Germaine de Randamie in April following a flyweight run.

Raul Rosas Jr. will be back at the event. Rosas showed his skills on Dana White's Contender Series and White had to sign him afterward. The 19-year-old has won two fights in a row, six of them by submission.

He will face Aoriqileng, who has eight wins by knockout. The Chinese fighter has not won a fight against Daniel Marcos in February and his last three fights have a record of 1-1 (1 NC).

How to watch the UFC 306 main card

• Live stream: ESPN+ ($79.99 PPV fee plus $10.99/month membership)

UFC 306 is available in the US on ESPN+ and ESPN+ PPV.

The UFC 306 main card is available via pay-per-view on ESPN+, which also requires a subscription. The PPV price for UFC 306 is $79.99. for current subscribers. New subscribers can pay a bundle price of $134.98 for the UFC 306 pay-per-view and an annual ESPN+ subscription, offering a savings of more than 30 percent.

Sean O'Malley defends the UFC bantamweight title in the main event against Merab Dvalishvili.

O'Malley was the first graduate of Dana White's Contender Series to win and defend gold, with his last fight coming in March when he defended his title against Marlon Vera.

He faces 2019 World Championships silver medalist Dvalishvili, a wrestler with ten straight wins. Dvalishvili refused to face teammate Aljamain Sterling when Sterling was champion, despite being the favorite. Although Dvalishvili has dominated everyone in his path, O'Malley believes he will falter on fight night.

“At the end of the day, he's just another opponent,” O'Malley said on MMA Fighting's Believe You Me podcast. “It's going to be another knockout, a highlight reel for the 'Sugar Show.' I feel bad for him because he's been so close to the belt for so long and he's just not going to get it, and that's on me. So there's a little bit of guilt there.”

In the co-main event, Alexa Grasso will defend the UFC flyweight title in a three-way fight against former champion Valentina Shevchenko. Grasso shocked the world when she defeated Shevchenko at UFC 285. They split to a draw a year ago, and Grasso wants to end the rivalry on a high note.

UFC 306 fight card

Main map

• Sean O'Malley (c) against Merab Dvalishvili for the UFC bantamweight title
• Alexa Grasso (c) vs. Valentina Shevchenko 3 for the UFC flyweight title
• Brian Ortega vs Diego Lopes; Featherweight
• Daniel Zellhuber vs. Esteban Ribovics; Lightweights
• Ronaldo Rodríguez vs Ode' Osbourne; Flyweights

Front Page

• Ignacio Bahamondes vs. Manuel Torres; Lightweights
• Irena Aldana vs. Norma Dumont; Bantamweights
• Edgar Chairez vs. Joshua Van; Flyweights
• Yazmin Jauregui vs. Ketlen Souza; Strawweights

Early preliminary rounds

• Raul Rosas Jr. vs. Aoriqileng; Bantamweights

Start time of UFC 306

• Date: Saturday, 14 September
• Location: The Ball – Las Vegas
• Time: 10:00 p.m. ET (8:00 p.m. ET for the preliminaries)

The UFC 306 main card begins at 10 p.m. ET. The main event should begin around 12:30 a.m. ET, depending on how long the prelims last.

Upcoming UFC TV Schedule